基于时序距离的AS级Internet动态性测量方法  

Measurement of AS-level Internet Evolution Based on Temporal Distance

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作  者:张岩庆[1] 陆余良[1] 杨国正[1] ZHANG Yan-qing LU Yu-liang YANG Guo-zheng(Department of Network Engineering, Electronic Engineering Institute, Hefei 230037, Chin)

机构地区:[1]解放军电子工程学院网络工程系,合肥230037

出  处:《计算机科学》2016年第8期118-122,共5页Computer Science

摘  要:随着域间路由安全问题日益突出,AS(Autonomous System)级互联网的动态性测量开始成为研究热点。针对当前的测量方法无法全面度量AS级互联网演化规律的问题,提出了基于时序距离的AS可达距离(ASRD)、AS连通距离(ASCD)两个特征参数,分别从可达性和连通性两个方面度量AS级互联网在不同时刻的差异。通过分析不同时间跨度和时间粒度的路由表数据集,可以对特定AS的动态性进行测量。实验结果表明,对ASRD和ASCD进行时序分析不仅能够准确检测AS级Internet异常事件,而且可以发现AS级Internet的长期演化规律。As the inter-domain routing security problem becomes increasingly prominent, the measurement of AS-level Intemet variability has become a research hotspot. The existing measurement methods can not reflect the variability of AS-level Internet comprehensively, therefore, this paper introduced AS reachability distance (ASRD) and AS connecti- vity distance (ASCD) based on temporal distance to characterize the difference of AS reachability and connectivity at different time respectively. Dynamics of a specific AS can be measured by analyzing route information base of different time spans and time granularities. Experimental results show that the time series analysis of ASRD and ASCD can be used to not only detect AS-level network anomalous event accurately, but also reveal the evolution laws of AS-level In- ternet in a long term.

关 键 词:自治域可达距离 自治域连通距离 时序分析 动态性测量 

分 类 号:TP393.4[自动化与计算机技术—计算机应用技术]

 

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